Prime Numbers
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Numbers
Compare 11 vs 19
Compare 11 vs 19
Compare
vs
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Property
11
19
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
11
^{1}
19
^{1}
Prime factorization
11
19
Divisors count
2
2
Divisors
1
,
11
1
,
19
Number of properties
36
18
Additive primes
5th
Centered decagonal primes
1st
Centered triangular primes
1st
Chen primes
5th
8th
Class 1+ primes
5th
Cousin primes
(2nd member)
2nd
Cousin primes
(1st member)
4th
Cuban primes 1
2nd
Dihedral primes
3rd
Good primes
2nd
Happy primes
3rd
Long primes
3rd
Lucas primes
4th
Mills primes
2nd
Palindromic primes
5th
Pierpont primes
7th
Pierpont primes of the 2nd kind
5th
Primes
5th
8th
Prime quadruplets
(1st member)
2nd
Prime quadruplets
(3rd member)
1st
Prime quadruplets
(4th member)
2nd
Prime quintuplet 1s
(2nd member)
1st
Prime quintuplet 1s
(5th member)
1st
Prime quintuplet 2s
(1st member)
2nd
Prime quintuplet 2s
(3rd member)
1st
Prime quintuplet 2s
(4th member)
2nd
Prime sextuplets
(5th member)
1st
Prime sextuplets
(2nd member)
1st
Prime triplets
(1st member)
3rd
Prime triplets
(2nd member)
2nd
5th
Prime triplets
(3rd member)
1st
4th
Safe primes
3rd
Sexy primes
(1st member)
3rd
Sexy primes
(2nd member)
1st
4th
Sexy prime quadrupletss
(1st member)
2nd
Sexy prime quadrupletss
(2nd member)
1st
Sexy prime triplets
(1st member)
3rd
Sexy prime triplets
(2nd member)
1st
Sexy prime triplets
(3rd member)
2nd
Solinas primes
4th
7th
Sophie germain primes
4th
Super primes
3rd
Thabit primes
3rd
Twin primes
(1st member)
3rd
Twin primes
(2nd member)
4th
Ulam primes
3rd
Wagstaff primes
2nd
Wedderburn-etherington primes
3rd
Roman numberals
XI
XIX
Base 2
1011
_{2}
10011
_{2}
Base 3
102
_{3}
201
_{3}
Base 4
23
_{4}
103
_{4}
Base 5
21
_{5}
34
_{5}
Base 6
15
_{6}
31
_{6}
Base 7
14
_{7}
25
_{7}
Base 8
13
_{8}
23
_{8}
Base 9
12
_{9}
21
_{9}
Base 10
11
_{10}
19
_{10}
Base 11
10
_{11}
18
_{11}
Base 12
b
_{12}
17
_{12}
Base 13
b
_{13}
16
_{13}
Base 14
b
_{14}
15
_{14}
Base 15
b
_{15}
14
_{15}
Base 16
b
_{16}
13
_{16}
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